<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <!-- 引入 Vue.js CDN -->
    <script src="https://cdn.jsdelivr.net/npm/vue@2.6.14/dist/vue.js"></script>
    <!-- 引入 Vue Router CDN -->
    <script src="https://cdn.jsdelivr.net/npm/vue-router@3.5.3/dist/vue-router.js"></script>
</head>

<body>
    <div id="app"></div>
    <script type="module" src="main.js"></script>
</body>

</html>